[题]正午时,地球上垂直物体的影子只朝北,不朝南的地方是:①南回归线以南地区;②北回归线以北地区;③赤道以北地区;④南极。[评议]这是一道有一定难度、综合性较强、迷惑性较大选择题。它不仅考查了地方时和太阳直射点回归移动的概念,而且还考查了关于在地球上方向的判别问题。 [Title] At noon, the shadows of the vertical objects on the Earth are only facing the north. Places that do not face south are: 1 South of the Tropic of Cancer; 2 North of the Tropic of Cancer; 3 North of the Equator; 4 South Pole. [Comment] This is a multiple-choice question with a certain degree of difficulty, comprehensiveness and confusion. It not only examines the concept of the return movement at the local time and the direct point of the sun, but also examines the issue of discriminating on the direction of the earth.